Calculator usage: using the memory on the TI-30xa
The tutor covers a simple, yet powerful feature of the Texas Instruments TI-30xa. Using the memory …
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sciences
Physics: average velocity
The tutor illuminates a very plain, yet critical, concept from physics. Average velocity has the following …
Physical chemistry: evaporation rate
The tutor’s casual observation leads to a discussion about evaporation. Last Saturday, my children and I …
Polarity: why ionic substances (salts) dissolve in water
The tutor briefly explains why water can dissolve so many salts. A salt is a compound …
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Scientific notation: toggling back and forth on the TI-30XA
In high school, the tutor had a calculator much like the TI-30XA. For scientific notation, there’s …
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Radioactive dating: half life, continued
The tutor continues about the phenomenon of half life and one of its well-known applications. In …
Energy efficiency: electric cars vs gasoline-powered cars
The tutor continues to investigate energy alternatives. The comparison between electric and gasoline cars might depend …
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Calculator features: built-in constants on the SHARP EL-520W
Tutoring physics or chemistry, you remember your attachment to your calculator as you pursued those subjects. …
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Math: Direct Proportionality
As a math tutor, you’ll likely introduce this concept. It’s used even more in physics and …
Calculator tips: Entering scientific notation
Entering scientific notation on calculators is an important consideration. When you tutor high school sciences, you’ll …